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Any clearance issues with billy boat headers?
 

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Same headers here. I had a slight issue on the driver side as it was close to the K-Brace but no issues. The supplied gaskets suck. Do yourself a favor and either have V-Bands welded in or use GrimSpeed gaskets. The supplied gaskets blew out in under 200 miles.

You'll also need their mid section or have one fabbed up.

I have the FDOM-0313 catted mid section and FDOM-0325 Exhaust.

Gaskets:
 

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2011 CTSV Coupe M BLK LSX376-B15
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Same headers here. I had a slight issue on the driver side as it was close to the K-Brace but no issues. The supplied gaskets suck. Do yourself a favor and either have V-Bands welded in or use GrimSpeed gaskets. The supplied gaskets blew out in under 200 miles.

You'll also need their mid section or have one fabbed up.

I have the FDOM-0313 catted mid section and FDOM-0325 Exhaust.

Gaskets:
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Did you have the V-Bands added or ordered them that way?
 
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